> Note: this patch targets 2.6.37 and tries to be as simple as possible.> That is why it adds more copy-and-paste horror into fs/compat.c and> uglifies fs/exec.c, this will be cleanuped later.> > compat_copy_strings() plays with bprm->vma/mm directly and thus has> two problems: it lacks the RLIMIT_STACK check and argv/envp memory> is not visible to oom killer.> > Export acct_arg_size() and get_arg_page(), change compat_copy_strings()> to use get_arg_page(), change compat_do_execve() to do acct_arg_size(0)> as do_execve() does.> > Add the fatal_signal_pending/cond_resched checks into compat_count() and> compat_copy_strings(), this matches the code in fs/exec.c and certainly> makes sense.> > Signed-off-by: Oleg Nesterov <oleg@redhat.com>